diff --git a/theme-github-auto.css b/theme-github-auto.css
index 08ca109..2d8bbf2 100644
--- a/theme-github-auto.css
+++ b/theme-github-auto.css
@@ -378,6 +378,22 @@
   .ui.basic.inverted.button {
     color: #f9fafb !important;
   }
+
+  // border color of SSH/https cloning buttons (non-focused)
+  .ui.basic.blue.button,
+  .ui.basic.blue.buttons .button,
+  .ui.basic.primary.button,
+  .ui.basic.primary.buttons .button {
+    box-shadow: inset 0 0 0 1px transparent !important;
+  }
+
+  // same for hover
+  ui.basic.blue.button:hover,
+  .ui.basic.blue.buttons .button:hover,
+  .ui.basic.primary.button:hover,
+  .ui.basic.primary.buttons .button:hover {
+    box-shadow: inset 0 0 0 0px transparent !important;
+  }
 }
 @media (prefers-color-scheme: dark) {
   :root {
diff --git a/theme-github.css b/theme-github.css
index 014cbe9..66e06e9 100644
--- a/theme-github.css
+++ b/theme-github.css
@@ -372,3 +372,19 @@ a.muted {
 .ui.basic.inverted.button {
   color: #f9fafb !important;
 }
+
+// border color of SSH/https cloning buttons (non-focused)
+.ui.basic.blue.button,
+.ui.basic.blue.buttons .button,
+.ui.basic.primary.button,
+.ui.basic.primary.buttons .button {
+  box-shadow: inset 0 0 0 1px transparent !important;
+}
+
+// same for hover
+ui.basic.blue.button:hover,
+.ui.basic.blue.buttons .button:hover,
+.ui.basic.primary.button:hover,
+.ui.basic.primary.buttons .button:hover {
+  box-shadow: inset 0 0 0 0px transparent !important;
+}